TDA3858 Datasheet, PDF (9/17 Pages) NXP Semiconductors – Quasi-split sound processor for all standards

Philips Semiconductors
Quasi-split sound processor for all standards
Product specification
TDA3858
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Tracking Automatic Frequency Control (AFC) of the vision carrier reference circuit
V_{0 19}
F_TR
S
tracking output voltage (pin 19)
tracking reducing factor for
black picture
white test picture
50% grey picture
AFC steepness (open loop) for
black picture
white test picture
50% grey picture
note 3
V_P1 − 3.3 −
−
9
−
4
−
6
−
−8
−
−3
−
−5.5
V_P1 − 1 V
−
−
−
−
mV/kHz
−
mV/kHz
−
mV/kHz
FM1 and FM2 demodulators
Measurements with FM IF input signals of 5.5 MHz and 5.74 MHz with V_{i IF (RMS)} = 10 mV (f_mod = 1 kHz, deviation
∆f = ±50 kHz) at pins 21 and 25 without ceramic filters, R_S = 50 Ω.
De-emphasis 50 µs and V₆ = V_P1 (B/G standard).
Q_L-factor = 11 for resonant circuits at pins 8-9 and 12-13 (including IC).
V_IC(RMS)
intercarrier signals
(RMS values, pins 8-9 and 12-13)
−
100
−
mV
V
DC voltage (pins 8, 9, 12 and 13)
−
1.8
−
V
V_o(RMS)
AF output signals
(RMS values, pins 10 and 11)
0.84
0.95 1.07
V
∆V_o
difference of AF signals between
note 4
channels (pins 10 and 11)
−
−
1
dB
R_{10, 11}
output resistance
75
100
130
Ω
V_{10, 11}
I_{10, 11 (M)}
DC voltage
allowed AC current of emitter output
(peak value)
note 5
1.8
2.1
2.4
V
−
−
±1.5
mA
I_{10, 11}
THD
maximum allowed DC output current
total harmonic distortion
−
−
−2
mA
−
0.5
1.0
%
V_o(RMS)
AF output signal (RMS value)
THD = 1.5%
1.25
−
−
V
α_AM
AM suppression
1 kHz; m = 0.3
48
54
−
dB
S/N(W)
weighted signal-to-noise ratio
CCIR468-3
64
68
−
dB
B
AF bandwidth (−3 dB)
lower limit
−
−
20
Hz
upper limit
100
−
−
kHz
α_CR
crosstalk attenuation (pins 10-11)
60
70
−
dB
V₇
adjustment voltage for AF2
note 6
minimum output
−
signal
0
−
V
maximum output −
signal
5
−
V
June 1994
9